I think lots of these issues are scale issues. Most people agree having some sort of weapon is fine up to a point.. that point may be a knife or a rifle but mos

I think lots of these issues are scale issues. Most people agree having some sort of weapon is fine up to a point.. that point may be a knife or a rifle but most folks probably think private citizens shouldn’t have tactical nuclear weapons. Likewise, license plates are fine, full real-time surveillance of all movement in your country probably not great and not something the public wants. Almost of these slippery slope issues are scaling problems, especially in privacy. Tracking people with cookies at your site, probably fine, using third party cookies to track everything your visit on the internet, maybe less great. Etc etc. Legislating scale seems to be something that is particularly difficult since it’s easily argued, as you did, that’s it’s not inherently bad.